[INFO] updating cached repository whl36512/email_client
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/whl36512/email_client
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/whl36512/email_client" "work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/whl36512/email_client"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/whl36512/email_client'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/whl36512/email_client" "work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/gh/whl36512/email_client"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/gh/whl36512/email_client'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e1c6e1394a405f44157823a8a2e9527d0c8b186b
[INFO] sha for GitHub repo whl36512/email_client: e1c6e1394a405f44157823a8a2e9527d0c8b186b
[INFO] validating manifest of whl36512/email_client on toolchain master#efe2f32a6b8217425f361ec7c206910c611c03ee
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of whl36512/email_client on toolchain try#78b0bd8441ef961f6475e3d47fe3bca38cb83432
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78b0bd8441ef961f6475e3d47fe3bca38cb83432-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing whl36512/email_client
[INFO] finished frobbing whl36512/email_client
[INFO] frobbed toml for whl36512/email_client written to work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/whl36512/email_client/Cargo.toml
[INFO] started frobbing whl36512/email_client
[INFO] finished frobbing whl36512/email_client
[INFO] frobbed toml for whl36512/email_client written to work/ex/pr-60039/sources/try#78b0bd8441ef961f6475e3d47fe3bca38cb83432/gh/whl36512/email_client/Cargo.toml
[INFO] crate whl36512/email_client already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78b0bd8441ef961f6475e3d47fe3bca38cb83432-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking whl36512/email_client against master#efe2f32a6b8217425f361ec7c206910c611c03ee for pr-60039
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039/worker-2/master#efe2f32a6b8217425f361ec7c206910c611c03ee:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039/sources/master#efe2f32a6b8217425f361ec7c206910c611c03ee/gh/whl36512/email_client:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+efe2f32a6b8217425f361ec7c206910c611c03ee-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 869e63d70d0d78182b9aba6e857ea4c9fac9e135fcdd185b8e18932950d24a88
[INFO] running `"docker" "start" "-a" "869e63d70d0d78182b9aba6e857ea4c9fac9e135fcdd185b8e18932950d24a88"`
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]     Checking bufstream v0.1.4
[INFO] [stderr]    Compiling openssl-sys v0.9.40
[INFO] [stderr]    Compiling email v0.0.20
[INFO] [stderr]     Checking regex-syntax v0.6.4
[INFO] [stderr]     Checking hostname v0.1.5
[INFO] [stderr]     Checking uuid v0.6.5
[INFO] [stderr]     Checking crypto-mac v0.6.2
[INFO] [stderr]    Compiling syn v0.15.23
[INFO] [stderr]     Checking nom v4.1.1
[INFO] [stderr]     Checking hmac v0.6.3
[INFO] [stderr]     Checking md-5 v0.7.0
[INFO] [stderr]    Compiling openssl v0.9.24
[INFO] [stderr]     Checking num-integer v0.1.39
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking regex v1.1.0
[INFO] [stderr]     Checking native-tls v0.1.5
[INFO] [stderr]     Checking env_logger v0.6.0
[INFO] [stderr]    Compiling serde_derive v1.0.82
[INFO] [stderr]     Checking lettre v0.8.3
[INFO] [stderr]     Checking lettre_email v0.8.3
[INFO] [stderr]     Checking email_client v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around method argument
[INFO] [stderr]   --> src/main.rs:18:13
[INFO] [stderr]    |
[INFO] [stderr] 18 |         .to(("whl36512@gmail.com"))
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around method argument
[INFO] [stderr]   --> src/main.rs:18:13
[INFO] [stderr]    |
[INFO] [stderr] 18 |         .to(("whl36512@gmail.com"))
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 49.35s
[INFO] running `"docker" "inspect" "869e63d70d0d78182b9aba6e857ea4c9fac9e135fcdd185b8e18932950d24a88"`
[INFO] running `"docker" "rm" "-f" "869e63d70d0d78182b9aba6e857ea4c9fac9e135fcdd185b8e18932950d24a88"`
[INFO] [stdout] 869e63d70d0d78182b9aba6e857ea4c9fac9e135fcdd185b8e18932950d24a88